Zimbra expert developer needed - 1

I have an existing Zimbra 7.x OSE system running that I'd like to make some modifications to. The modifications/customization will include style/skin customization and installation of Zimlets. I need someone who can start right away as this needs to be done in the next couple of days. Please only bid if you have experience with Zimbra and can dedicate some time to getting this done right away.